43-12-01: Elevator Hinge Brackets
FAA order 43-12-01 is an airworthiness directive. The FAA's subject line: Elevator Hinge Brackets. It names Douglas DC-3: about 155 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: flight controls.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- The Boeing Company
- Models
- DC3A-S1C3G, DC3A-S1CG, DC3A-S4C4G, DC3A-SC3G, DC3A-SCG
- On this site
- Douglas DC-3 155 registered
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (549 characters)
43-12-01 DOUGLAS: (Was Service Note 4 of AD-669-3.) Applies to DC3A aircraft. \n\n\tAt each periodic inspection, check the elevator hinge brackets and if cracks are present the brackets should be replaced. Due to the possibility of vibration causing fatigue failures, continuous operation of the airplanes in the range of engine speeds between 1,300 and 1,600 r.p.m. should be avoided. A minimum engine speed of 1,700 r.p.m. during cruising flight is recommended. \n\n\t(Douglas Service Letter dated January 15, 1943, covers this same subject.)
Related safety bulletins advice on the same designs, not orders
2014-11-24NM-15-03 · Flight Controls
2008-06-12NM-08-28 · Landing Gear: DC-3 Tail Wheel Fork Check
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/43-12-01.json · aircraft systems.